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Naya [18.7K]
2 years ago
14

Math 7th grade pls help 18 points pls pls pls help it’s due in 2 mins

Mathematics
2 answers:
Mars2501 [29]2 years ago
7 0

Answer:

look it up on symbolab

Step-by-step explanation:

Nastasia [14]2 years ago
3 0

Answer:

z ≤ 7

Step-by-step explanation:

30 ≥ 6(2/3z + 1/3)

distribute the 6

30 ≥ 4z + 2

subtract 2 from both sides

28 ≥ 4z

divide both sides by 4

7 ≥ z

z ≤ 7

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So I have to compute the following but i don't know what they mean any help?
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Answer:

Step-by-step explanation:

This is a Combination (as in permutation vs combination) question the symbol (n r) refers to "n choose r". This is sometimes written as nCr

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